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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 2K |
| — |
| 4 |
| AS33069US | AS-BUSINESS-COMMUNICATIONS - BCI | 2K | 65.5K | 3 |
| AS26757US | SOLERA-HOLDINGS-EXPANSION-02 - Solera Holdings, LLC | 2K | — | 2 |
| AS19621US | MID-ASNO - MODESTO IRRIGATION DISTRICT | 2K | — | 5 |
| AS31801US | BHS-NET-LOU - Baptist Healthcare System | 2K | — | 8 |
| AS23137US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 2K | — | 2 |
| AS19272US | RCL-268-19272 - Rochester Colo LLC | 2K | 65.5K | 2 |
| AS62488US | CCG-AS - Columbia County, Georgia | 2K | 65.5K | 2 |
| AS36451US | RIGETTI-BERKELEY-01 - Rigetti Computing | 2K | — | 5 |
| AS40947US | FWOCE-AS42 - Franklin W. Olin College Of Engineering | 2K | — | 5 |
| AS11716US | WON-AS - William O'Neil & Company | 2K | — | 8 |
| AS54562US | RISE-VOIP - JAB Wireless, INC. | 2K | — | 8 |
| AS33349US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS33349 - The Bank of New York Mellon Corporation | 2K | — | 5 |
| AS13913US | AFFILIATED - Affiliated Monitoring, Inc. | 2K | — | 8 |
| AS20338US | MYTELASN - My Telepath, Inc | 2K | — | 1 |
| AS40548US | INFINERA-US - Nokia of America Corporation | 2K | — | 5 |
| AS26087US | GARDNER-WEBB - Gardner-Webb University | 2K | — | 1 |
| AS17364US | SOKA-UNIVERSITY-OF-AMERICA - Soka University of America | 2K | — | 4 |
| AS30568US | VCS-AS - M3COM of Virginia, Inc | 2K | — | 5 |
| AS4880US | LIFELINE-ASN - Lifeline Systems, Company | 2K | — | 6 |
| AS31756US | COLORADOSPRINGS-GOV - City of Colorado Springs | 2K | — | 1 |
| AS26224US | INCOMM-NET0 - InComm | 2K | — | 5 |
| AS54836US | TRIN-AS - Trinity Industries, Inc. | 2K | — | 5 |
| AS14205US | RPAPSL-14205 - Riviera Park Alameda Padre Serra LLC | 2K | — | 2 |
| AS18787US | DANAHER - Danaher | 2K | — | 6 |
| AS400615US | DATACANOPY-C1-NVA5 - Data Canopy Colocation, LLC | 2K | — | 8 |
| AS18793US | COM-PAIR-BROADBAND - Com-Pair Services | 2K | — | 4 |
| AS32021US | OSOINTERNET - Oso Internet Solutions | 2K | — | 5 |
| AS32075US | FBL-AS - Iowa Farm Bureau Federation & Affiliated Cos. | 2K | — | 8 |
| AS54735US | TTGSI - Peraton Labs Inc. | 2K | — | 4 |
| AS11046US | LITTLE-APPLE - Little Apple Technologies | 2K | — | 8 |
| AS54312US | ROCKETFUEL - Rocket Fuel Inc. | 2K | — | 7 |
| AS397340US | GLASTEL-ISP - Glasford Telephone Company | 2K | — | 4 |
| AS35984US | GDS-AS-01 - Group Dekko Services, LLC | 2K | — | 5 |
| AS30038US | ANDRENA - Andrena, Inc. | 2K | — | 8 |
| AS6169US | CLOUD-42-6169 - Kentik Technologies, Inc. | 2K | 16 | 6 |
| AS53797US | PINPOINTE-N1 - Pinpointe On-Demand, Inc. | 2K | — | 1 |
| AS32194US | ASN-PHOENIX-CHILDRENS - PHOENIX CHILDREN'S HOSPITAL | 2K | — | 5 |
| AS55253US | CAA-55253 - Creative Artists Agency, LLC | 2K | — | 8 |
| AS398224US | UNITEDBANK-01 - United Bankshares, Inc. | 2K | — | 4 |
| AS18614US | YAKNET - Yakima County | 2K | — | 1 |
| AS40533US | EBAY-ENTERPRISE - eBay, Inc | 2K | — | 8 |
| AS27314US | HIU - Hope International University | 2K | — | 1 |
| AS16575US | HANOVER-COLLEGE - Hanover College | 2K | — | 1 |
| AS14869US | USTCONLINE - Union Springs Telephone Company | 2K | — | 1 |
| AS36481US | DIGITALEDGE-VENTURES-INC - DIGITAL EDGE VENTURES INC. | 2K | — | 5 |
| AS202021US | RSOE-EU Take-Two Interactive Software, Inc. | 2K | — | 5 |